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dc.contributor.advisorMiller, L. Scotten_US
dc.contributor.authorFarrell, Thomas Elmer
dc.date.accessioned2007-08-23T12:49:16Z
dc.date.available2007-08-23T12:49:16Z
dc.date.issued2005-12
dc.identifier.isbn9780542757679
dc.identifier.othert05051
dc.identifier.otherAAT 1436555:UMI
dc.identifier.urihttp://hdl.handle.net/10057/760
dc.descriptionThesis (M.S.)--Wichita State University, College of Engineering, Dept. of Aerospace Engineering.en
dc.description"December 2005."en
dc.description.abstractMany different boundary layer control techniques are used in ground vehicle aerodynamic testing including suction, blowing, ground-boards, and rolling roads. In this paper an alternative boundary layer control method is discussed. Low momentum flow in the boundary layer can be energized using circulation from a rotating cylinder protruding through the floor. A comparison study shows that this application, if effective, may be a more cost-efficient solution than current road vehicle boundary layer control techniques. A pilot tunnel test was performed in the WSU Boundary Layer Tunnel with the results showing a boundary layer profile with an initial momentum thickness of 0.098 in. could be reduced by 40-45% with rotational velocities of approximately 5000rpm. Following this successful test, a full scale test performed in the WSU Walter H. Beech Memorial Wind Tunnel demonstrated the feasibility of the concept. An initial momentum thickness of 0.1445 in. was reduced 29% with a rotational velocity of 3900rpm. The results found seem to indicate this technique would be a very viable option provided certain aspects including cylinder balance, sizing, and rotational velocity could be optimized in future testing.en
dc.format.extent1607509 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen
dc.rightsCopyright Thomas Elmer Farrell, 2005. All rights reserved.en
dc.subject.lcshElectronic dissertationsen
dc.titleDevelopment of a new boundary layer control technique for automotive wind tunnel testingen
dc.typeThesisen


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